Subtract 4/20 from 72/35
1st number: 2 2/35, 2nd number: 4/20
72/35 - 4/20 is 13/7.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 35 and 20 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 35 × 4 = 140,
72/35 = 72 × 4/35 × 4 = 288/140 - Likewise, for the 2nd fraction, since 20 × 7 = 140,
4/20 = 4 × 7/20 × 7 = 28/140 - Subtract the two like fractions:
288/140 - 28/140 = 288 - 28/140 = 260/140 - After reducing the fraction, the answer is 13/7
- In mixed form: 16/7
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